I can’t find howto edit a single control handle of a vectorpoint. On the Mac it is alt-cmd. But that doesn’t work on the iPad (pro). I have tried al kind of combinations, but i can’t find the solution…

Thank you Lanette for your time.
I was successful in finding this function. There are two red handles. What I like to achief is to just move one single red handle without moving the other.
Do you know if this is possible?